What happens to a higher concentration of disolved molecule on one side of a cell membrane during the process of diffusion

The higher concentration begins to defuse into the area with lower concentration.

What is osmosis

Diffusion of water through a selectively permeable membrane[HIGH] - [LOW]

True or False: The structure and properties of the cell wall allow it to be selective and maintain homeostasis

False

True or False: The plasma membrane can contain cholesterol, which tends to make the membrane more stable

False

Place the following in order from smallest to largest level of organization(Tissue, Organ, Organ System, Individual Cells, Organism)

Individual Cell, Tissue, Organ, Organ System, Organism(Cells make up tissue, tissues make up organs, organs make up organ systems, organ systems make up organisms)

Compare and Contrast endocytosis and exocytosis

Endocytosis-process by which cells absorb molecules (such as proteins) from outsideExocytosis- Cells direct the contents of secretory visels out the cell membrane

Describe the structure of a phospholipid

Made up of a head and 2 fatty acid tails. Head- phosphate and glycerol (hydrophilic) Tail- fatty acid (hydrophobic)

Which end of a phospholipid is attracted to water

head (hydrophilic)

Plants have cells that contain chloroplast. Why must their cells contain mitochondria as well

Chloroplast- makes food by trapping light energy to convert water and carbon dioxide to form oxygen and glucose (photosynthesis)Mitochondria- provides energy for the cells use by extracting the energy from glucose molecules and storing ATP

How are phospholipids arranged in the plasma membrane

In a dual layer, the tails are facing toward each other. The head i son the outer surface

What is the function of membrane proteins

Transport proteins. Diffusion and active transport

True or False: Transport proteins span the cell membrane allowing the selectively permeable membrane to regulate which molecules enter and leave a cell